**“****Smart Charts”** is **Chapter 12** from **Merry Math V **for students of** Class 5th **of **JKBOSE**. This post is about **Smart Charts ****Class 5 Maths ****JKBOSE Solutions****. **In a previous post, you read about **Area and its Boundary Class 5 JKBOSE Solutions**. Let’s get started:

**Smart Charts Class 5 Maths JKBOSE Solutions**

**Page No. 176 Solutions**

**Chi–Chi, Meow – Meow **

Rumaisa did a project ‘Animals and Birds’. She asked each child in her class about one favourite pet animal. She used **tally marks **to record each answer. For example, if someone said ‘cat’ she put one line in front of ‘cats’. When someone said ‘cat’ again, she added a line. So, means two cats and means 5 cats. In all 24 children said ‘cat’ was their favourite animal. Help Rumaisa complete the table.

**Look at the tally marks and write the number for each animal in the table. How many children in all did Rumaisa talk to?**

**Which is the most favourite pet animal on this table?**

Ans. The dog is the favourite pet animal on this table.

**Which pet will you like to have? What will you name it? Which other animals can be kept at home? Discuss.**

Ans. I would like to have a dog. I will name it Tommy. The other animals that can be kept at home are cats, rabbits, parrots, etc.

**Page No. 179-180 Solutions**

**Helping Hands**

In the EVS period, the teacher asked the children whether they helped their parents at home. They were different answers. Children named the work in which they help their parents the most. The teacher collected their answers and made a table.

Ans.

Now you can fill the chapatti chart to show the numbers given in the table.

**Look and find out**

Children who help in making or serving food are

**a) One-third of the total children**

**b) Half of the total children**

**c) One-fourth of the total children**

Ans. One-fourth of the total children

**Page No. 181 Solutions**

**Practice time: After School**

Ask 10 of your friends about what they like to do most after school.

Ans.

**Ad Mad!!**

Nazima loves to watch cartoons on television. One day she thought of counting the number of ads during the breaks. She found that in each break there were 14 advertisements. In 10 of those ads, there were children as actors.

**Why do you think that children are used in so many ads? **

Ans. Children are used in so many advertisements as the cartoons are mostly watched by the children.

**Use tally marks to count the number of ads during a short break in a programme. Were there ads during the news programme?**

Ans. Tally mark used to count the number of ads during a short break in a program:

Yes, during news programmes also, there are ads.

**Page No. 182 Solutions**

**Hot and Cold**

Have you seen the weather report on TV or in a newspaper? These are two bar Charts. These show the highest temperature (in degree Celsius) in four cities, on two different days. The cities are Delhi, Shimla, Bangalore and Jaisalmer.

**Find out from the bar charts-**

**(a) Which city is the hottest on 1 June?**

**Ans. **Jaisalmer is the hottest on 1 June.

**(b) Which city is the coldest on 1 December?**

**Ans. **Shimla is the coldest on 1 December.

**(c) Which city shows little change in temperature on the two days- 1 June and 1 December?**

**Ans. **Bangalore.

**Page No. 183 Solutions**

**Rabbits in Australia:**

Earlier there were no rabbits in Australia. Rabbits were brought to Australia around the year 1780. At that time there were no animals in Australia which ate rabbits. So the rabbits began to multiply at a very fast rate. Imagine what they did to the crops! The table shows how rabbits grew every year.

**After each year, the number of rabbits was**

**a) A little less than double the number of rabbits in the last year.**

**b) Double the number in the last year.**

**c) 8 more than the number in the last year.**

**d) More than double the number of rabbits in the last year.**

Ans. a) A little less than double the number of rabbits in the last year.

**At the end of year 6, the number of rabbits was close to**

**a) 400**

**b) 600**

**c) 800**

Ans. a) 400

**After which year did the number of rabbits cross 1000?**

Ans. After the year 1788, the number of rabbits crosses 1000.

**Page No. 184-185 Solutions**

**Family Tree:**

Madhav went to a wedding along with his parents. He met many relatives there. But he didn’t know everyone. He met his mother’s grandfather but found that her grandmother was not alive. He also found that her mother (grandmother’s mother) is still alive and is more than a hundred years old.

Madhav got confused. He couldn’t imagine his mother’s grandmother’s mother! So, Madhav’s mother made a family tree for him, as shown below:

Madhav’s mother helped him understand her family with the help of this drawing. You can also find out about your older generations using such a family tree.

**Answer the following questions:**

**How many grandparents in all does Shobna have?**

Ans. Shobna has four grandparents.

**How many great, great grandparents in all does Madhav have?**

Ans. Madhav has eight great, great grandparents in all.

**How many elders will be in the VII generation of his family?**

Ans. 32 elders will be in the VII generation of his family.

VI generation: 8 × 2 = 16

VII generation: 16 × 2 = 32

**If he takes his family tree forward, in which generation will he find 128 elders?**

Ans. Number of members in VII generation of Madhav’s family = 32

Number of members in VIII generation of Madhav’s family = 32 × 2 = 64

Number of members in IX generation of Madhav’s family = 64 × 2 = 128

Thus, in the IX generation, the number of elders in Madhav’s family will be 128.

**Page No. 185-186 Solutions**

**Growth Chart of a Plant:**

Amit sowed a few seeds of moong dal in the ground. The height of the plant grew to 1.4 cm in the first four days. After that, it started growing faster.

Amit measured the height of the plant after every four days and put a dot on the chart. For example, if you look at the dot marked on the fourth day, you can see on the left side scale that it is 1.4 cm high.

**Now look at the height of each dot in cm and check from the table if he has marked the dots correctly.**

**Find out from the growth chart:**

**a) Between which days did the length of the plant change the most?**

**i) 0-4, ii) 4-8, iii) 8-12, iv) 12-16, v) 16-20**

Ans. iii) 8-12,

**b) What could be the length of this plant on the 14th day? Guess.**

**i) 8.7 cm, ii) 9.9 cm, iii) 10.2 cm, iv) 10.5 cm**

Ans. ii) 9.9 cm

**c) Will the plant keep growing all the time? What will be its length on the 100th day? Make a guess!**

Ans. No, the plant will not keep growing in height all the time I think its length would be about 17-18 cm on the 100^{th} day.

**Page No. 187 Solutions**

**Name three charts used to represent the data.**

Ans. Three charts used to represent data are i) pictograph ii) bar graph iii) chapatti chart.

**Draw a pictograph showing the following information.**

Ans.

**In a village, the number of people using different modes of transport to go to their offices is as follows. Draw a bar graph for the given data:**

**Bicycle 50%**

**Bus 30%**

**Car 5%**

**Autorikshaw 10%**

**Others 5%**

Ans.

**In a city number of people speaking different languages (percent wise) is given as:**

**Kashmiri – 40% **

**Urdu – 30% **

**Hindi – 10% **

**English – 10% **

**Dogri – 5%**

**Others- 5%**

**Draw a chapatti chart (Pie chart) for the data given.**

That’s all about **Smart Charts ****Class 5 Maths JKBOSE Solutions. **Hope it helped. Do share your views about this post in the comment section below.

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